Results 161 to 170 of about 2,845 (193)

Naringenin degradation by the endophytic diazotroph Herbaspirillum seropedicae SmR1

Microbiology, 2013
Several bacteria are able to degrade flavonoids either to use them as carbon sources or as a detoxification mechanism. Degradation pathways have been proposed for several bacteria, but the genes responsible are not known. We identified in the genome of the endophyte Herbaspirillum seropedicae SmR1 an operon potentially associated with the degradation ...
A M, Marin, E M, Souza, F O, Pedrosa, L M, Souza, G L, Sassaki, V A, Baura, M G, Yates, R, Wassem, R A, Monteiro   +8 more
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Uridylylation of the PII protein fromHerbaspirillum seropedicae

Canadian Journal of Microbiology, 2001
The PII protein is apparently involved in the control of NifA activity in Herbaspirillum seropedicae. To evaluate the probable role of PII in signal transduction, uridylylation assays were conducted with purified H. seropedicae PII and Escherichia coli GlnD, or a cell-free extract of H. seropedicae as sources of uridylylating activity.
E M, Benelli, M, Buck, E M, de Souza, M G, Yates, F O, Pedrosa   +4 more
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The PII Protein of Herbaspirillum Seropedicae

1999
The PII protein of Herbaspirillum seropedicae has been purified, crystallized and analysed for physical and biochemical properties. It is trimeric in solution, with a monomeric molecular weight of 12 kDa, comprising 112 amino acid residues, with a C-terminal loop absent from the E. coli PII.
E. M. Benelli, E. M. Souza, M. G. Yates, L. U. Rigo, M. Buck, M. Moore, A. Harper, F. O. Pedrosa   +7 more
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Role of conserved cysteine residues in Herbaspirillum seropedicae NifA activity

Research in Microbiology, 2009
Herbaspirillum seropedicae is an endophytic diazotrophic bacterium that associates with economically important crops. NifA protein, the transcriptional activator of nif genes in H. seropedicae, binds to nif promoters and, together with RNA polymerase-sigma(54) holoenzyme, catalyzes the formation of open complexes to allow transcription initiation.
Marco A S, Oliveira, Valter A, Baura, Bruno, Aquino, Luciano F, Huergo, Marco A S, Kadowaki, Leda S, Chubatsu, Emanuel M, Souza, Ray, Dixon, Fábio O, Pedrosa, Roseli, Wassem, Rose A, Monteiro   +10 more
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In vitro characterization of the NAD+ synthetase NadE1 from Herbaspirillum seropedicae

Archives of Microbiology, 2016
Nicotinamide adenine dinucleotide synthetase enzyme (NadE) catalyzes the amination of nicotinic acid adenine dinucleotide (NaAD) to form NAD(+). This reaction represents the last step in the majority of the NAD(+) biosynthetic routes described to date. NadE enzymes typically use either glutamine or ammonium as amine nitrogen donor, and the reaction is ...
Kerly, Laskoski, Adrian R S, Santos, Ana C, Bonatto, Fábio O, Pedrosa, Emanuel M, Souza, Luciano F, Huergo   +5 more
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Regulation of Nitrogen Fixation in Herbaspirillum seropedicae

1998
Herbaspirillum seropedicae is an aerobic, plant-associated, nitrogen-fixing bacterium of the β-proteobacteria group. Nitrogen fixation in this organism is repressed by ammonium ions or oxygen, and nitrogenase switch-off by ammonium ions is partial and does not involve ADP-ribosylation (Klasssen et al., unpublished). The nif genes of H.
F. O. Pedrosa, E. M. Souza, E. M. Benelli, I. M. P. Machado, M. B. R. Steffens, G. Klassen, H. B. Machado, L. U. Rigo, R. Wassem, R. A. Monteiro, F. G. M. Rego, L. S. Chubats, M. Buck, M. Moore, A. Harper, M. Drummond, M. G. Yates   +16 more
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Indentification of Acetobacter diazotrophicus, Herbaspirillum seropedicae and Herbaspirillum rubrisubalbicans using biochemical and genetic criteria

Plant and Soil, 1995
Nitrogen-fixing Acetobacter diazotrophicus, Herbaspirillum seropedicae and Herbaspirillum rubrisubalbicans colonize sugar cane, and are thought to be capable of supplying high levels of fixed nitrogen to this plant. Eight A. diazotrophicus, two H. seropedicae and four H.
A. Ureta, B. Alvarez, A. Ram�n, M. A. Vera, G. Martinez-Drets   +4 more
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Validation of reference genes for RT-qPCR analysis in Herbaspirillum seropedicae

Journal of Microbiological Methods, 2016
The RT-qPCR technique needs a validated set of reference genes for ensuring the consistency of the results from the gene expression. Expression stabilities for 9 genes from Herbaspirillum seropedicae, strain HRC54, grown with different carbon sources were calculated using geNorm and NormFinder, and the gene rpoA showed the best stability values.
Daniella Duarte Villarinho, Pessoa, Marcia Soares, Vidal, José Ivo, Baldani, Jean Luiz, Simoes-Araujo   +3 more
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A two‐dimensional proteome reference map of Herbaspirillum seropedicae proteins

PROTEOMICS, 2007
AbstractHerbaspirillum seropedicae is an endophytic diazotroph associated with economically important crops such as rice, sugarcane, and wheat. Here, we present a 2‐D reference map for H. seropedicae. Using MALDI‐TOF‐MS we identified 205 spots representing 173 different proteins with a calculated average of 1.18 proteins/gene. Seventeen hypothetical or
Daniela Fojo Seixas, Chaves, Pércio Pereira, Ferrer, Emanuel Maltempi, de Souza, Leonardo Magalhães, Gruz, Rose Adele, Monteiro, Fábio, de Oliveira Pedrosa   +5 more
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A Report on the Genome of Herbaspirillum seropedicae Strain Z78.

2006
The sequence and annotation of the genome of Herbaspirillum seropedicae strain Z78 is being completed by The Parana State Genome Programme, GENOPAR (www.genopar.org) a consortium of 10 Institutions (UFPR, UEL, UEM, UEPG, UNIOESTE, UNIPAR, IAPAR, EMBRAPA-SOJA, PUC-PR, UFSC). H.
Fábio O. Pedrosa, Genopar Consortium
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